Condenser



Oct. 12,1926. 1,602,921

0. METZYGER ET AL CONDENSER Original Filed May 11, 1921 Inveptor: (JarZlIei-zgefl EwaZd ll'iischen, by 2W afizz g Patented Oct. 12, 1926.

UNITED sir-Ares CARL METZGER AND EWALD Lfi'TSCI-IEN, OF MUNICH, GERMANY\ connmrsna.

Original application filed Kay 11, 1921, Serial No. 468,722, and in Germany May 20, 1920. Divided and this'application filed October 5, 1922. Serial No. 592,633.

This invention has reference to an improved counter-current surface condenser, and is essentially characterized in that the cooling surfaces of the condenser are surrounded by a casing having an external air jacket, to prevent the transference from the casing of heat produced by the steam. It is further characterized in that the said jacketed casing is separated from the steam supply pipe by a heat insulating medium to prevent the conduction of heat from the steam pipe to the said jacketed casing.

In one embodiment, the interior of the jacket is put in conunuhication with the interior of the casing sm'rounding the cooling surfaces through the openings at the point where the temperature in the casing is lowest, i. e. at the point adjacent the outlct'for the condensate so that the temperature in the jacket will be maintained correspondingly low.

A construction of condenser according to the present invention is illustrated diagrammatically in section in Figure 1 of the accompanying drawing, which is a vertical section, while Figure 2 shows a top view of the condenser with the cooling coil removed therefrom.

Referring to the accompanying drawing 1 designates a funnel shaped casing through which steam entering at 7 from an exhaust supply passes in a. downward direction. In said casing is arranged a cooling coil 2 through which the cooling fluid is forced at a high speed in an upward direction.

The cooling coil 2 conforms somewhat in shape to the interior of the funnel shaped.

casing 1 and is spaced away from the said casing by a corrugated frusto-conical member 9. The casing 1 is enclosed in an outer casing 10 forming an air jacket 11 which is effective to prevent radiation of heat from the inner casing 1.

The cooling fluid enters the coil at L and leaves at 6. The most efficient operation of the condenser is obtained when the cooling fluid is forced through the coil at a speed which will result in the cooling fluid becoming heated to the temperature of the incoming steam, at the point where the cooling fluid leaves the condenser, and in the steam being reduced to condensate at the point where the cooling fluid enters the condenser i. e. just before reaching the outlet 3 for the condensate.

The interior of the jacket is in com-v munication with the interior of the casing containingthe condenser through openings 8, so that the temperature and correspond ing pressure in the casing will be maintained substantially equal to the lowest temperature and pressure obtaining in the condenser casing.

The condenser casing and the jacket are separated from the exhaust pipe by a layer 5 of heat insulating material which resists the passage of heat from said pipe to the condenser casing.

As stated, in the casing 1 the cooling liquid, etc., is forced with great rapidity through a pipe 2 lodged in it, whereby a temperature is attained in the condensing vessel which corresponds at the outflow end of the water of condensation at 3 to the entering temperatureof the cooling liquid 4, whereas at the steam entrance 5 the cooling liquid which flows out at 6 receives the temperature of the entering steam, etc. to be condensed.

The cooling casing 1 consisting of a cylindrical portion diverging into a funnel shaped portion is provided at one end, namely at its lower end with openings 8. Around the casing 1 is a casing 10 the walls of the casing 1 and the casing 10 forming a chamber 11. Cooling means as for instance a cooling coil 2 is arranged so as to extend along the funnel shaped or conical ended casing 1 and in the embodiment shown in the drawing these cooling means or co0ling pipe 2 extends along the cylindrical portion of the casing 1. Above the funnel shaped portion of the casing 1 the upper wall 10 of the casing 10 has an opening 7 which permits the steam to enter therethrough and strike the funnel shaped portion of the casing 1. Intermediate the upper wall 10 of the casing 10 and the body of the casing 10 is the heat insulating material 5 as heretofore stated. The interior of the casing 10 indicated by the chamber 11 acts to a large extent as an insulating medium between the exterior of the casing land the atmosphere.

This is a divisional application of the copending application, Serial No. 468,722, filed May 11, 1921.

l'Ve have shown an embodiment of our invention but changes can be made therein without departing from the spirit of the appended claims.

Having now more fully described and ascertained the nature of our invention and in what manner the same is to be perforn'ied, we declare that what we claim is 1. A counter current surface condenser for steam, comprising a casing having an inlet adapted to be connected with a steam supply pipe, and having an outlet, an external air jacket suronnding said casing, a conical surface in the path of the steam passing the inlet, cooling means arranged in said casing and around said conical surface, adapted to convey a cooling medium in a direction contrary to the flow of the steam.

2. A counter current surface condenser for steam, comprising a funnel-shaped casing having an inlet adapted to be connected with a steam-supply pipe, and having an outlet and having openings in the cylindrical portion of said casing communicating exterior to the casing, an external air jacket surrounding said funnel-shaped casing, having its interior in communication with said openings, cooling means arranged in said casing adapted to convey a cooling medium in a direction contrary to the flow of the steam through the funnel-shaped casing, said cooling medium entering at the outlet of the funnel-shaped casing, whereby the coolest medium meets the coolest eondensate.

A counter current surface condenser for steam, comprising a tunnel-shaped casing having an inlet adapted to be connected with the steam-supply pipe, and having an outlet, and having openings in the cylindrical portion of said casing, the conical part of said tunnel-shaped casing provided with a corrugated i'rusto-conical member, an external air jacket surrounding said casing, and havii'ig its interior commimicating with the openiigs of the outlet, a cooling coil arranged in said casing, adapted to convey a cooling medium in a direction contrary to the flow of the steam.

t. A counter current surt'ace comlenser for steam, comprising a 'lunnel-shaj'ied casing having an inlet adapted to be connected with a steam-supply pipe, and having an outlet and having openings in the cylindrical portion of said. casing, an external air jacket surrounding said casing, and having its interior communicating with the openings of the outlet, a cooling coil arranged in said casing, adapted to convey a cooling medium in a. direction contrary to the flow of the steam, and a heat insulating medium for insulating the same from the steam-simply pipe.

5. In combination, a steam supply means, and means for condensing said steam, comprising a funnel-shaped casing, having openings at the discharge end of the same, a cooling coil within the casing and of substantially the same configuration, said coil entering the casing at the discharge end of the same, and passing out of the casing at the inlet end of the same, whereby the cool.- ing medium within the coil flows in a direction opposite to the direction of the condensate, an air jacket surounding the easing and conim'lunicating with the openings at the discharge end of the casing, and a heat insulating medium between the casing and the steam supply means.

In testimony whereof we herewith atfiX our signatures.

CARL METZGER. EVVALD LUTSCHEN. 

